#include "fio.h"
#include "hash.h"
#include "verify.h"
+#include "trim.h"
+#include "lib/rand.h"
struct io_completion_data {
int nr; /* input */
int error; /* output */
- unsigned long bytes_done[2]; /* output */
+ unsigned long bytes_done[DDIR_RWDIR_CNT]; /* output */
struct timeval time; /* output */
};
dprint(FD_RANDOM, "free: b=%llu, idx=%u, bit=%u\n", block, idx, bit);
- return (f->file_map[idx] & (1 << bit)) == 0;
+ return (f->file_map[idx] & (1UL << bit)) == 0;
}
/*
struct fio_file *f = io_u->file;
unsigned long long block;
unsigned int blocks, nr_blocks;
+ int busy_check;
block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs;
nr_blocks = (io_u->buflen + min_bs - 1) / min_bs;
blocks = 0;
+ busy_check = !(io_u->flags & IO_U_F_BUSY_OK);
while (nr_blocks) {
- unsigned int this_blocks, mask;
unsigned int idx, bit;
+ unsigned long mask, this_blocks;
/*
* If we have a mixed random workload, we may
* encounter blocks we already did IO to.
*/
- if ((td->o.ddir_nr == 1) && !random_map_free(f, block)) {
- if (!blocks)
- blocks = 1;
+ if (!busy_check) {
+ blocks = nr_blocks;
break;
}
+ if ((td->o.ddir_seq_nr == 1) && !random_map_free(f, block))
+ break;
idx = RAND_MAP_IDX(f, block);
bit = RAND_MAP_BIT(f, block);
if (this_blocks + bit > BLOCKS_PER_MAP)
this_blocks = BLOCKS_PER_MAP - bit;
- if (this_blocks == BLOCKS_PER_MAP)
- mask = -1U;
- else
- mask = ((1U << this_blocks) - 1) << bit;
+ do {
+ if (this_blocks == BLOCKS_PER_MAP)
+ mask = -1UL;
+ else
+ mask = ((1UL << this_blocks) - 1) << bit;
+
+ if (!(f->file_map[idx] & mask))
+ break;
+
+ this_blocks--;
+ } while (this_blocks);
+
+ if (!this_blocks)
+ break;
f->file_map[idx] |= mask;
nr_blocks -= this_blocks;
unsigned long long max_blocks;
unsigned long long max_size;
+ assert(ddir_rw(ddir));
+
/*
* Hmm, should we make sure that ->io_size <= ->real_file_size?
*/
if (max_size > f->real_file_size)
max_size = f->real_file_size;
+ if (td->o.zone_range)
+ max_size = td->o.zone_range;
+
max_blocks = max_size / (unsigned long long) td->o.ba[ddir];
if (!max_blocks)
return 0;
static int get_next_free_block(struct thread_data *td, struct fio_file *f,
enum fio_ddir ddir, unsigned long long *b)
{
- unsigned long long min_bs = td->o.rw_min_bs;
+ unsigned long long block, min_bs = td->o.rw_min_bs, lastb;
int i;
+ lastb = last_block(td, f, ddir);
+ if (!lastb)
+ return 1;
+
i = f->last_free_lookup;
- *b = (i * BLOCKS_PER_MAP);
- while ((*b) * min_bs < f->real_file_size &&
- (*b) * min_bs < f->io_size) {
- if (f->file_map[i] != (unsigned int) -1) {
- *b += ffz(f->file_map[i]);
- if (*b > last_block(td, f, ddir))
+ block = i * BLOCKS_PER_MAP;
+ while (block * min_bs < f->real_file_size &&
+ block * min_bs < f->io_size) {
+ if (f->file_map[i] != -1UL) {
+ block += ffz(f->file_map[i]);
+ if (block > lastb)
break;
f->last_free_lookup = i;
+ *b = block;
return 0;
}
- *b += BLOCKS_PER_MAP;
+ block += BLOCKS_PER_MAP;
i++;
}
return 1;
}
-static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
- enum fio_ddir ddir, unsigned long long *b)
+static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
{
- unsigned long long r;
+ unsigned long long rmax, r, lastb;
int loops = 5;
+ lastb = last_block(td, f, ddir);
+ if (!lastb)
+ return 1;
+
+ if (f->failed_rands >= 200)
+ goto ffz;
+
+ rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX;
do {
- r = os_random_long(&td->random_state);
+ if (td->o.use_os_rand)
+ r = os_random_long(&td->random_state);
+ else
+ r = __rand(&td->__random_state);
+
+ *b = (lastb - 1) * (r / ((unsigned long long) rmax + 1.0));
+
dprint(FD_RANDOM, "off rand %llu\n", r);
- *b = (last_block(td, f, ddir) - 1)
- * (r / ((unsigned long long) OS_RAND_MAX + 1.0));
+
/*
* if we are not maintaining a random map, we are done.
*/
if (!file_randommap(td, f))
- return 0;
+ goto ret_good;
/*
* calculate map offset and check if it's free
*/
if (random_map_free(f, *b))
- return 0;
+ goto ret_good;
dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n",
*b);
} while (--loops);
+ if (!f->failed_rands++)
+ f->last_free_lookup = 0;
+
/*
* we get here, if we didn't suceed in looking up a block. generate
* a random start offset into the filemap, and find the first free
loops = 10;
do {
f->last_free_lookup = (f->num_maps - 1) *
- (r / (OS_RAND_MAX + 1.0));
+ (r / ((unsigned long long) rmax + 1.0));
if (!get_next_free_block(td, f, ddir, b))
- return 0;
+ goto ret;
- r = os_random_long(&td->random_state);
+ if (td->o.use_os_rand)
+ r = os_random_long(&td->random_state);
+ else
+ r = __rand(&td->__random_state);
} while (--loops);
/*
* that didn't work either, try exhaustive search from the start
*/
f->last_free_lookup = 0;
+ffz:
+ if (!get_next_free_block(td, f, ddir, b))
+ return 0;
+ f->last_free_lookup = 0;
return get_next_free_block(td, f, ddir, b);
+ret_good:
+ f->failed_rands = 0;
+ret:
+ return 0;
+}
+
+static int __get_next_rand_offset_zipf(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ unsigned long long *b)
+{
+ *b = zipf_next(&td->zipf);
+ return 0;
+}
+
+static int __get_next_rand_offset_pareto(struct thread_data *td,
+ struct fio_file *f, enum fio_ddir ddir,
+ unsigned long long *b)
+{
+ *b = pareto_next(&td->zipf);
+ return 0;
+}
+
+static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
+{
+ if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
+ return __get_next_rand_offset(td, f, ddir, b);
+ else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
+ return __get_next_rand_offset_zipf(td, f, ddir, b);
+ else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
+ return __get_next_rand_offset_pareto(td, f, ddir, b);
+
+ log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
+ return 1;
+}
+
+static int get_next_rand_block(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *b)
+{
+ if (!get_next_rand_offset(td, f, ddir, b))
+ return 0;
+
+ if (td->o.time_based) {
+ fio_file_reset(f);
+ if (!get_next_rand_offset(td, f, ddir, b))
+ return 0;
+ }
+
+ dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
+ f->file_name, f->last_pos, f->real_file_size);
+ return 1;
+}
+
+static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
+ enum fio_ddir ddir, unsigned long long *offset)
+{
+ assert(ddir_rw(ddir));
+
+ if (f->last_pos >= f->io_size + get_start_offset(td) && td->o.time_based)
+ f->last_pos = f->last_pos - f->io_size;
+
+ if (f->last_pos < f->real_file_size) {
+ unsigned long long pos;
+
+ if (f->last_pos == f->file_offset && td->o.ddir_seq_add < 0)
+ f->last_pos = f->real_file_size;
+
+ pos = f->last_pos - f->file_offset;
+ if (pos)
+ pos += td->o.ddir_seq_add;
+
+ *offset = pos;
+ return 0;
+ }
+
+ return 1;
+}
+
+static int get_next_block(struct thread_data *td, struct io_u *io_u,
+ enum fio_ddir ddir, int rw_seq)
+{
+ struct fio_file *f = io_u->file;
+ unsigned long long b, offset;
+ int ret;
+
+ assert(ddir_rw(ddir));
+
+ b = offset = -1ULL;
+
+ if (rw_seq) {
+ if (td_random(td))
+ ret = get_next_rand_block(td, f, ddir, &b);
+ else
+ ret = get_next_seq_offset(td, f, ddir, &offset);
+ } else {
+ io_u->flags |= IO_U_F_BUSY_OK;
+
+ if (td->o.rw_seq == RW_SEQ_SEQ) {
+ ret = get_next_seq_offset(td, f, ddir, &offset);
+ if (ret)
+ ret = get_next_rand_block(td, f, ddir, &b);
+ } else if (td->o.rw_seq == RW_SEQ_IDENT) {
+ if (f->last_start != -1ULL)
+ offset = f->last_start - f->file_offset;
+ else
+ offset = 0;
+ ret = 0;
+ } else {
+ log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq);
+ ret = 1;
+ }
+ }
+
+ if (!ret) {
+ if (offset != -1ULL)
+ io_u->offset = offset;
+ else if (b != -1ULL)
+ io_u->offset = b * td->o.ba[ddir];
+ else {
+ log_err("fio: bug in offset generation\n");
+ ret = 1;
+ }
+ }
+
+ return ret;
}
/*
* until we find a free one. For sequential io, just return the end of
* the last io issued.
*/
-static int get_next_offset(struct thread_data *td, struct io_u *io_u)
+static int __get_next_offset(struct thread_data *td, struct io_u *io_u)
{
struct fio_file *f = io_u->file;
- unsigned long long b;
enum fio_ddir ddir = io_u->ddir;
+ int rw_seq_hit = 0;
- if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) {
- td->ddir_nr = td->o.ddir_nr;
+ assert(ddir_rw(ddir));
- if (get_next_rand_offset(td, f, ddir, &b)) {
- dprint(FD_IO, "%s: getting rand offset failed\n",
- f->file_name);
- return 1;
- }
- } else {
- if (f->last_pos >= f->real_file_size) {
- if (!td_random(td) ||
- get_next_rand_offset(td, f, ddir, &b)) {
- dprint(FD_IO, "%s: pos %llu > size %llu\n",
- f->file_name, f->last_pos,
- f->real_file_size);
- return 1;
- }
- } else
- b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir];
+ if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) {
+ rw_seq_hit = 1;
+ td->ddir_seq_nr = td->o.ddir_seq_nr;
}
- io_u->offset = b * td->o.ba[ddir];
+ if (get_next_block(td, io_u, ddir, rw_seq_hit))
+ return 1;
+
if (io_u->offset >= f->io_size) {
dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n",
io_u->offset, f->io_size);
return 0;
}
-static inline int is_power_of_2(unsigned int val)
+static int get_next_offset(struct thread_data *td, struct io_u *io_u)
{
- return (val != 0 && ((val & (val - 1)) == 0));
+ struct prof_io_ops *ops = &td->prof_io_ops;
+
+ if (ops->fill_io_u_off)
+ return ops->fill_io_u_off(td, io_u);
+
+ return __get_next_offset(td, io_u);
}
-static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u)
+static inline int io_u_fits(struct thread_data *td, struct io_u *io_u,
+ unsigned int buflen)
+{
+ struct fio_file *f = io_u->file;
+
+ return io_u->offset + buflen <= f->io_size + get_start_offset(td);
+}
+
+static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u)
{
const int ddir = io_u->ddir;
unsigned int uninitialized_var(buflen);
unsigned int minbs, maxbs;
- long r;
+ unsigned long r, rand_max;
+
+ assert(ddir_rw(ddir));
minbs = td->o.min_bs[ddir];
maxbs = td->o.max_bs[ddir];
if (minbs == maxbs)
- buflen = minbs;
- else {
- r = os_random_long(&td->bsrange_state);
+ return minbs;
+
+ /*
+ * If we can't satisfy the min block size from here, then fail
+ */
+ if (!io_u_fits(td, io_u, minbs))
+ return 0;
+
+ if (td->o.use_os_rand)
+ rand_max = OS_RAND_MAX;
+ else
+ rand_max = FRAND_MAX;
+
+ do {
+ if (td->o.use_os_rand)
+ r = os_random_long(&td->bsrange_state);
+ else
+ r = __rand(&td->__bsrange_state);
+
if (!td->o.bssplit_nr[ddir]) {
buflen = 1 + (unsigned int) ((double) maxbs *
- (r / (OS_RAND_MAX + 1.0)));
+ (r / (rand_max + 1.0)));
if (buflen < minbs)
buflen = minbs;
} else {
buflen = bsp->bs;
perc += bsp->perc;
- if (r <= ((OS_RAND_MAX / 100L) * perc))
+ if ((r <= ((rand_max / 100L) * perc)) &&
+ io_u_fits(td, io_u, buflen))
break;
}
}
+
if (!td->o.bs_unaligned && is_power_of_2(minbs))
buflen = (buflen + minbs - 1) & ~(minbs - 1);
- }
- if (io_u->offset + buflen > io_u->file->real_file_size) {
- dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen,
- minbs, ddir);
- buflen = minbs;
- }
+ } while (!io_u_fits(td, io_u, buflen));
return buflen;
}
+static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u)
+{
+ struct prof_io_ops *ops = &td->prof_io_ops;
+
+ if (ops->fill_io_u_size)
+ return ops->fill_io_u_size(td, io_u);
+
+ return __get_next_buflen(td, io_u);
+}
+
static void set_rwmix_bytes(struct thread_data *td)
{
unsigned int diff;
static inline enum fio_ddir get_rand_ddir(struct thread_data *td)
{
unsigned int v;
- long r;
+ unsigned long r;
+
+ if (td->o.use_os_rand) {
+ r = os_random_long(&td->rwmix_state);
+ v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
+ } else {
+ r = __rand(&td->__rwmix_state);
+ v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
+ }
- r = os_random_long(&td->rwmix_state);
- v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
if (v <= td->o.rwmix[DDIR_READ])
return DDIR_READ;
struct timeval t;
long usec;
+ assert(ddir_rw(ddir));
+
if (td->rate_pending_usleep[ddir] <= 0)
return ddir;
} else
usec = td->rate_pending_usleep[ddir];
+ /*
+ * We are going to sleep, ensure that we flush anything pending as
+ * not to skew our latency numbers.
+ *
+ * Changed to only monitor 'in flight' requests here instead of the
+ * td->cur_depth, b/c td->cur_depth does not accurately represent
+ * io's that have been actually submitted to an async engine,
+ * and cur_depth is meaningless for sync engines.
+ */
+ if (td->io_u_in_flight) {
+ int fio_unused ret;
+
+ ret = io_u_queued_complete(td, td->io_u_in_flight, NULL);
+ }
+
fio_gettime(&t, NULL);
usec_sleep(td, usec);
usec = utime_since_now(&t);
odir = ddir ^ 1;
if (td_rw(td) && __should_check_rate(td, odir))
td->rate_pending_usleep[odir] -= usec;
-
+
+ if (ddir_trim(ddir))
+ return ddir;
return ddir;
}
{
enum fio_ddir ddir;
+ /*
+ * see if it's time to fsync
+ */
+ if (td->o.fsync_blocks &&
+ !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) &&
+ td->io_issues[DDIR_WRITE] && should_fsync(td))
+ return DDIR_SYNC;
+
+ /*
+ * see if it's time to fdatasync
+ */
+ if (td->o.fdatasync_blocks &&
+ !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) &&
+ td->io_issues[DDIR_WRITE] && should_fsync(td))
+ return DDIR_DATASYNC;
+
+ /*
+ * see if it's time to sync_file_range
+ */
+ if (td->sync_file_range_nr &&
+ !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) &&
+ td->io_issues[DDIR_WRITE] && should_fsync(td))
+ return DDIR_SYNC_FILE_RANGE;
+
if (td_rw(td)) {
/*
* Check if it's time to seed a new data direction.
ddir = td->rwmix_ddir;
} else if (td_read(td))
ddir = DDIR_READ;
- else
+ else if (td_write(td))
ddir = DDIR_WRITE;
+ else
+ ddir = DDIR_TRIM;
td->rwmix_ddir = rate_ddir(td, ddir);
return td->rwmix_ddir;
}
-static void put_file_log(struct thread_data *td, struct fio_file *f)
+static void set_rw_ddir(struct thread_data *td, struct io_u *io_u)
+{
+ io_u->ddir = get_rw_ddir(td);
+
+ if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) &&
+ td->o.barrier_blocks &&
+ !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) &&
+ td->io_issues[DDIR_WRITE])
+ io_u->flags |= IO_U_F_BARRIER;
+}
+
+void put_file_log(struct thread_data *td, struct fio_file *f)
{
int ret = put_file(td, f);
void put_io_u(struct thread_data *td, struct io_u *io_u)
{
- assert((io_u->flags & IO_U_F_FREE) == 0);
- io_u->flags |= IO_U_F_FREE;
+ td_io_u_lock(td);
- if (io_u->file)
+ if (io_u->file && !(io_u->flags & IO_U_F_FREE_DEF))
put_file_log(td, io_u->file);
-
io_u->file = NULL;
- flist_del(&io_u->list);
+ io_u->flags &= ~IO_U_F_FREE_DEF;
+ io_u->flags |= IO_U_F_FREE;
+
+ if (io_u->flags & IO_U_F_IN_CUR_DEPTH)
+ td->cur_depth--;
+ flist_del_init(&io_u->list);
flist_add(&io_u->list, &td->io_u_freelist);
- td->cur_depth--;
+ td_io_u_unlock(td);
+ td_io_u_free_notify(td);
+}
+
+void clear_io_u(struct thread_data *td, struct io_u *io_u)
+{
+ io_u->flags &= ~IO_U_F_FLIGHT;
+ put_io_u(td, io_u);
}
void requeue_io_u(struct thread_data *td, struct io_u **io_u)
dprint(FD_IO, "requeue %p\n", __io_u);
+ td_io_u_lock(td);
+
__io_u->flags |= IO_U_F_FREE;
- if ((__io_u->flags & IO_U_F_FLIGHT) && (__io_u->ddir != DDIR_SYNC))
+ if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(__io_u->ddir))
td->io_issues[__io_u->ddir]--;
__io_u->flags &= ~IO_U_F_FLIGHT;
-
+ if (__io_u->flags & IO_U_F_IN_CUR_DEPTH)
+ td->cur_depth--;
flist_del(&__io_u->list);
flist_add_tail(&__io_u->list, &td->io_u_requeues);
- td->cur_depth--;
+ td_io_u_unlock(td);
*io_u = NULL;
}
if (td->io_ops->flags & FIO_NOIO)
goto out;
+ set_rw_ddir(td, io_u);
+
/*
- * see if it's time to sync
+ * fsync() or fdatasync() or trim etc, we are done
*/
- if (td->o.fsync_blocks &&
- !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) &&
- td->io_issues[DDIR_WRITE] && should_fsync(td)) {
- io_u->ddir = DDIR_SYNC;
+ if (!ddir_rw(io_u->ddir))
goto out;
- }
-
- io_u->ddir = get_rw_ddir(td);
/*
* See if it's time to switch to a new zone
*/
- if (td->zone_bytes >= td->o.zone_size) {
+ if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) {
td->zone_bytes = 0;
- io_u->file->last_pos += td->o.zone_skip;
+ io_u->file->file_offset += td->o.zone_range + td->o.zone_skip;
+ io_u->file->last_pos = io_u->file->file_offset;
td->io_skip_bytes += td->o.zone_skip;
}
static void __io_u_mark_map(unsigned int *map, unsigned int nr)
{
- int index = 0;
+ int idx = 0;
switch (nr) {
default:
- index = 6;
+ idx = 6;
break;
case 33 ... 64:
- index = 5;
+ idx = 5;
break;
case 17 ... 32:
- index = 4;
+ idx = 4;
break;
case 9 ... 16:
- index = 3;
+ idx = 3;
break;
case 5 ... 8:
- index = 2;
+ idx = 2;
break;
case 1 ... 4:
- index = 1;
+ idx = 1;
case 0:
break;
}
- map[index]++;
+ map[idx]++;
}
void io_u_mark_submit(struct thread_data *td, unsigned int nr)
void io_u_mark_depth(struct thread_data *td, unsigned int nr)
{
- int index = 0;
+ int idx = 0;
switch (td->cur_depth) {
default:
- index = 6;
+ idx = 6;
break;
case 32 ... 63:
- index = 5;
+ idx = 5;
break;
case 16 ... 31:
- index = 4;
+ idx = 4;
break;
case 8 ... 15:
- index = 3;
+ idx = 3;
break;
case 4 ... 7:
- index = 2;
+ idx = 2;
break;
case 2 ... 3:
- index = 1;
+ idx = 1;
case 1:
break;
}
- td->ts.io_u_map[index] += nr;
+ td->ts.io_u_map[idx] += nr;
}
static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec)
{
- int index = 0;
+ int idx = 0;
assert(usec < 1000);
switch (usec) {
case 750 ... 999:
- index = 9;
+ idx = 9;
break;
case 500 ... 749:
- index = 8;
+ idx = 8;
break;
case 250 ... 499:
- index = 7;
+ idx = 7;
break;
case 100 ... 249:
- index = 6;
+ idx = 6;
break;
case 50 ... 99:
- index = 5;
+ idx = 5;
break;
case 20 ... 49:
- index = 4;
+ idx = 4;
break;
case 10 ... 19:
- index = 3;
+ idx = 3;
break;
case 4 ... 9:
- index = 2;
+ idx = 2;
break;
case 2 ... 3:
- index = 1;
+ idx = 1;
case 0 ... 1:
break;
}
- assert(index < FIO_IO_U_LAT_U_NR);
- td->ts.io_u_lat_u[index]++;
+ assert(idx < FIO_IO_U_LAT_U_NR);
+ td->ts.io_u_lat_u[idx]++;
}
static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec)
{
- int index = 0;
+ int idx = 0;
switch (msec) {
default:
- index = 11;
+ idx = 11;
break;
case 1000 ... 1999:
- index = 10;
+ idx = 10;
break;
case 750 ... 999:
- index = 9;
+ idx = 9;
break;
case 500 ... 749:
- index = 8;
+ idx = 8;
break;
case 250 ... 499:
- index = 7;
+ idx = 7;
break;
case 100 ... 249:
- index = 6;
+ idx = 6;
break;
case 50 ... 99:
- index = 5;
+ idx = 5;
break;
case 20 ... 49:
- index = 4;
+ idx = 4;
break;
case 10 ... 19:
- index = 3;
+ idx = 3;
break;
case 4 ... 9:
- index = 2;
+ idx = 2;
break;
case 2 ... 3:
- index = 1;
+ idx = 1;
case 0 ... 1:
break;
}
- assert(index < FIO_IO_U_LAT_M_NR);
- td->ts.io_u_lat_m[index]++;
+ assert(idx < FIO_IO_U_LAT_M_NR);
+ td->ts.io_u_lat_m[idx]++;
}
static void io_u_mark_latency(struct thread_data *td, unsigned long usec)
int fno;
do {
- long r = os_random_long(&td->next_file_state);
int opened = 0;
+ unsigned long r;
+
+ if (td->o.use_os_rand) {
+ r = os_random_long(&td->next_file_state);
+ fno = (unsigned int) ((double) td->o.nr_files
+ * (r / (OS_RAND_MAX + 1.0)));
+ } else {
+ r = __rand(&td->__next_file_state);
+ fno = (unsigned int) ((double) td->o.nr_files
+ * (r / (FRAND_MAX + 1.0)));
+ }
- fno = (unsigned int) ((double) td->o.nr_files
- * (r / (OS_RAND_MAX + 1.0)));
f = td->files[fno];
if (fio_file_done(f))
continue;
opened = 1;
}
- dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, f->flags);
+ dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf,
+ f->flags);
if ((!goodf || (f->flags & goodf)) && !(f->flags & badf))
break;
return f;
}
-static struct fio_file *get_next_file(struct thread_data *td)
+static struct fio_file *__get_next_file(struct thread_data *td)
{
struct fio_file *f;
return f;
}
+static struct fio_file *get_next_file(struct thread_data *td)
+{
+ struct prof_io_ops *ops = &td->prof_io_ops;
+
+ if (ops->get_next_file)
+ return ops->get_next_file(td);
+
+ return __get_next_file(td);
+}
+
static int set_io_u_file(struct thread_data *td, struct io_u *io_u)
{
struct fio_file *f;
io_u->file = NULL;
fio_file_set_done(f);
td->nr_done_files++;
- dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, td->nr_done_files, td->o.nr_files);
+ dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name,
+ td->nr_done_files, td->o.nr_files);
} while (1);
return 0;
{
struct io_u *io_u = NULL;
+ td_io_u_lock(td);
+
+again:
if (!flist_empty(&td->io_u_requeues))
io_u = flist_entry(td->io_u_requeues.next, struct io_u, list);
else if (!queue_full(td)) {
if (io_u) {
assert(io_u->flags & IO_U_F_FREE);
- io_u->flags &= ~IO_U_F_FREE;
+ io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF);
+ io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER);
+ io_u->flags &= ~IO_U_F_VER_LIST;
io_u->error = 0;
flist_del(&io_u->list);
- flist_add(&io_u->list, &td->io_u_busylist);
+ flist_add_tail(&io_u->list, &td->io_u_busylist);
td->cur_depth++;
+ io_u->flags |= IO_U_F_IN_CUR_DEPTH;
+ } else if (td->o.verify_async) {
+ /*
+ * We ran out, wait for async verify threads to finish and
+ * return one
+ */
+ pthread_cond_wait(&td->free_cond, &td->io_u_lock);
+ goto again;
}
+ td_io_u_unlock(td);
return io_u;
}
+static int check_get_trim(struct thread_data *td, struct io_u *io_u)
+{
+ if (td->o.trim_backlog && td->trim_entries) {
+ int get_trim = 0;
+
+ if (td->trim_batch) {
+ td->trim_batch--;
+ get_trim = 1;
+ } else if (!(td->io_hist_len % td->o.trim_backlog) &&
+ td->last_ddir != DDIR_READ) {
+ td->trim_batch = td->o.trim_batch;
+ if (!td->trim_batch)
+ td->trim_batch = td->o.trim_backlog;
+ get_trim = 1;
+ }
+
+ if (get_trim && !get_next_trim(td, io_u))
+ return 1;
+ }
+
+ return 0;
+}
+
+static int check_get_verify(struct thread_data *td, struct io_u *io_u)
+{
+ if (td->o.verify_backlog && td->io_hist_len) {
+ int get_verify = 0;
+
+ if (td->verify_batch)
+ get_verify = 1;
+ else if (!(td->io_hist_len % td->o.verify_backlog) &&
+ td->last_ddir != DDIR_READ) {
+ td->verify_batch = td->o.verify_batch;
+ if (!td->verify_batch)
+ td->verify_batch = td->o.verify_backlog;
+ get_verify = 1;
+ }
+
+ if (get_verify && !get_next_verify(td, io_u)) {
+ td->verify_batch--;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Fill offset and start time into the buffer content, to prevent too
+ * easy compressible data for simple de-dupe attempts. Do this for every
+ * 512b block in the range, since that should be the smallest block size
+ * we can expect from a device.
+ */
+static void small_content_scramble(struct io_u *io_u)
+{
+ unsigned int i, nr_blocks = io_u->buflen / 512;
+ unsigned long long boffset;
+ unsigned int offset;
+ void *p, *end;
+
+ if (!nr_blocks)
+ return;
+
+ p = io_u->xfer_buf;
+ boffset = io_u->offset;
+ io_u->buf_filled_len = 0;
+
+ for (i = 0; i < nr_blocks; i++) {
+ /*
+ * Fill the byte offset into a "random" start offset of
+ * the buffer, given by the product of the usec time
+ * and the actual offset.
+ */
+ offset = (io_u->start_time.tv_usec ^ boffset) & 511;
+ offset &= ~(sizeof(unsigned long long) - 1);
+ if (offset >= 512 - sizeof(unsigned long long))
+ offset -= sizeof(unsigned long long);
+ memcpy(p + offset, &boffset, sizeof(boffset));
+
+ end = p + 512 - sizeof(io_u->start_time);
+ memcpy(end, &io_u->start_time, sizeof(io_u->start_time));
+ p += 512;
+ boffset += 512;
+ }
+}
+
/*
* Return an io_u to be processed. Gets a buflen and offset, sets direction,
* etc. The returned io_u is fully ready to be prepped and submitted.
{
struct fio_file *f;
struct io_u *io_u;
+ int do_scramble = 0;
io_u = __get_io_u(td);
if (!io_u) {
return NULL;
}
+ if (check_get_verify(td, io_u))
+ goto out;
+ if (check_get_trim(td, io_u))
+ goto out;
+
/*
* from a requeue, io_u already setup
*/
f = io_u->file;
assert(fio_file_open(f));
- if (io_u->ddir != DDIR_SYNC) {
+ if (ddir_rw(io_u->ddir)) {
if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) {
dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u);
goto err_put;
}
+ f->last_start = io_u->offset;
f->last_pos = io_u->offset + io_u->buflen;
- if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_WRITE)
- populate_verify_io_u(td, io_u);
- else if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE)
- io_u_fill_buffer(td, io_u, io_u->xfer_buflen);
+ if (io_u->ddir == DDIR_WRITE) {
+ if (td->o.refill_buffers) {
+ io_u_fill_buffer(td, io_u,
+ io_u->xfer_buflen, io_u->xfer_buflen);
+ } else if (td->o.scramble_buffers)
+ do_scramble = 1;
+ if (td->o.verify != VERIFY_NONE) {
+ populate_verify_io_u(td, io_u);
+ do_scramble = 0;
+ }
+ } else if (io_u->ddir == DDIR_READ) {
+ /*
+ * Reset the buf_filled parameters so next time if the
+ * buffer is used for writes it is refilled.
+ */
+ io_u->buf_filled_len = 0;
+ }
}
/*
io_u->xfer_buflen = io_u->buflen;
out:
+ assert(io_u->file);
if (!td_io_prep(td, io_u)) {
if (!td->o.disable_slat)
fio_gettime(&io_u->start_time, NULL);
+ if (do_scramble)
+ small_content_scramble(io_u);
return io_u;
}
err_put:
void io_u_log_error(struct thread_data *td, struct io_u *io_u)
{
- const char *msg[] = { "read", "write", "sync" };
+ enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error);
+ const char *msg[] = { "read", "write", "sync", "datasync",
+ "sync_file_range", "wait", "trim" };
+
+ if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump)
+ return;
log_err("fio: io_u error");
td_verror(td, io_u->error, "io_u error");
}
+static void account_io_completion(struct thread_data *td, struct io_u *io_u,
+ struct io_completion_data *icd,
+ const enum fio_ddir idx, unsigned int bytes)
+{
+ unsigned long uninitialized_var(lusec);
+
+ if (!td->o.disable_clat || !td->o.disable_bw)
+ lusec = utime_since(&io_u->issue_time, &icd->time);
+
+ if (!td->o.disable_lat) {
+ unsigned long tusec;
+
+ tusec = utime_since(&io_u->start_time, &icd->time);
+ add_lat_sample(td, idx, tusec, bytes);
+
+ if (td->o.max_latency && tusec > td->o.max_latency) {
+ if (!td->error)
+ log_err("fio: latency of %lu usec exceeds specified max (%u usec)\n", tusec, td->o.max_latency);
+ td_verror(td, ETIME, "max latency exceeded");
+ icd->error = ETIME;
+ }
+ }
+
+ if (!td->o.disable_clat) {
+ add_clat_sample(td, idx, lusec, bytes);
+ io_u_mark_latency(td, lusec);
+ }
+
+ if (!td->o.disable_bw)
+ add_bw_sample(td, idx, bytes, &icd->time);
+
+ add_iops_sample(td, idx, &icd->time);
+}
+
+static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir)
+{
+ unsigned long long secs, remainder, bps, bytes;
+ bytes = td->this_io_bytes[ddir];
+ bps = td->rate_bps[ddir];
+ secs = bytes / bps;
+ remainder = bytes % bps;
+ return remainder * 1000000 / bps + secs * 1000000;
+}
+
static void io_completed(struct thread_data *td, struct io_u *io_u,
struct io_completion_data *icd)
{
* initialized, silence that warning.
*/
unsigned long uninitialized_var(usec);
+ struct fio_file *f;
dprint_io_u(io_u, "io complete");
+ td_io_u_lock(td);
assert(io_u->flags & IO_U_F_FLIGHT);
- io_u->flags &= ~IO_U_F_FLIGHT;
+ io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
+ td_io_u_unlock(td);
- if (io_u->ddir == DDIR_SYNC) {
+ if (ddir_sync(io_u->ddir)) {
td->last_was_sync = 1;
+ f = io_u->file;
+ if (f) {
+ f->first_write = -1ULL;
+ f->last_write = -1ULL;
+ }
return;
}
td->last_was_sync = 0;
+ td->last_ddir = io_u->ddir;
- if (!io_u->error) {
+ if (!io_u->error && ddir_rw(io_u->ddir)) {
unsigned int bytes = io_u->buflen - io_u->resid;
const enum fio_ddir idx = io_u->ddir;
+ const enum fio_ddir odx = io_u->ddir ^ 1;
int ret;
td->io_blocks[idx]++;
+ td->this_io_blocks[idx]++;
td->io_bytes[idx] += bytes;
- td->this_io_bytes[idx] += bytes;
- if (ramp_time_over(td)) {
- if (!td->o.disable_clat || !td->o.disable_bw ||
- __should_check_rate(td, idx))
- usec = utime_since(&io_u->issue_time,
- &icd->time);
+ if (!(io_u->flags & IO_U_F_VER_LIST))
+ td->this_io_bytes[idx] += bytes;
+
+ if (idx == DDIR_WRITE) {
+ f = io_u->file;
+ if (f) {
+ if (f->first_write == -1ULL ||
+ io_u->offset < f->first_write)
+ f->first_write = io_u->offset;
+ if (f->last_write == -1ULL ||
+ ((io_u->offset + bytes) > f->last_write))
+ f->last_write = io_u->offset + bytes;
+ }
+ }
+
+ if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
+ td->runstate == TD_VERIFYING)) {
+ account_io_completion(td, io_u, icd, idx, bytes);
- if (!td->o.disable_clat) {
- add_clat_sample(td, idx, usec, bytes);
- io_u_mark_latency(td, usec);
+ if (__should_check_rate(td, idx)) {
+ td->rate_pending_usleep[idx] =
+ (usec_for_io(td, idx) -
+ utime_since_now(&td->start));
}
- if (!td->o.disable_bw)
- add_bw_sample(td, idx, bytes, &icd->time);
- if (__should_check_rate(td, idx))
- td->rate_pending_usleep[idx] += (long) td->rate_usec_cycle[idx] - usec;
- if (__should_check_rate(td, idx ^ 1))
- td->rate_pending_usleep[idx ^ 1] -= usec;
+ if (idx != DDIR_TRIM && __should_check_rate(td, odx))
+ td->rate_pending_usleep[odx] =
+ (usec_for_io(td, odx) -
+ utime_since_now(&td->start));
}
if (td_write(td) && idx == DDIR_WRITE &&
if (ret && !icd->error)
icd->error = ret;
}
- } else {
+ } else if (io_u->error) {
icd->error = io_u->error;
io_u_log_error(td, io_u);
}
+ if (icd->error) {
+ enum error_type_bit eb = td_error_type(io_u->ddir, icd->error);
+ if (!td_non_fatal_error(td, eb, icd->error))
+ return;
+ /*
+ * If there is a non_fatal error, then add to the error count
+ * and clear all the errors.
+ */
+ update_error_count(td, icd->error);
+ td_clear_error(td);
+ icd->error = 0;
+ io_u->error = 0;
+ }
}
static void init_icd(struct thread_data *td, struct io_completion_data *icd,
int nr)
{
+ int ddir;
if (!td->o.disable_clat || !td->o.disable_bw)
fio_gettime(&icd->time, NULL);
icd->nr = nr;
icd->error = 0;
- icd->bytes_done[0] = icd->bytes_done[1] = 0;
+ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
+ icd->bytes_done[ddir] = 0;
}
static void ios_completed(struct thread_data *td,
io_u = td->io_ops->event(td, i);
io_completed(td, io_u, icd);
- put_io_u(td, io_u);
+
+ if (!(io_u->flags & IO_U_F_FREE_DEF))
+ put_io_u(td, io_u);
}
}
init_icd(td, &icd, 1);
io_completed(td, io_u, &icd);
- put_io_u(td, io_u);
+
+ if (!(io_u->flags & IO_U_F_FREE_DEF))
+ put_io_u(td, io_u);
if (icd.error) {
td_verror(td, icd.error, "io_u_sync_complete");
}
if (bytes) {
- bytes[0] += icd.bytes_done[0];
- bytes[1] += icd.bytes_done[1];
+ int ddir;
+
+ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
+ bytes[ddir] += icd.bytes_done[ddir];
}
return 0;
}
if (bytes) {
- bytes[0] += icd.bytes_done[0];
- bytes[1] += icd.bytes_done[1];
+ int ddir;
+
+ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
+ bytes[ddir] += icd.bytes_done[ddir];
}
return 0;
* "randomly" fill the buffer contents
*/
void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
- unsigned int max_bs)
+ unsigned int min_write, unsigned int max_bs)
{
- long *ptr = io_u->buf;
+ io_u->buf_filled_len = 0;
if (!td->o.zero_buffers) {
- while ((void *) ptr - io_u->buf < max_bs) {
- *ptr = rand() * GOLDEN_RATIO_PRIME;
- ptr++;
- }
+ unsigned int perc = td->o.compress_percentage;
+
+ if (perc) {
+ unsigned int seg = min_write;
+
+ seg = min(min_write, td->o.compress_chunk);
+ fill_random_buf_percentage(&td->buf_state, io_u->buf,
+ perc, seg, max_bs);
+ } else
+ fill_random_buf(&td->buf_state, io_u->buf, max_bs);
} else
- memset(ptr, 0, max_bs);
+ memset(io_u->buf, 0, max_bs);
}
projects / fio.git / blobdiff